lasinfo¶
- Author
Howard Butler
- Contact
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lasinfo (libLAS 1.6.0b2 with GeoTIFF 1.3.0 GDAL 1.8dev)
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lasinfo options:
-h [ --help ] produce help message
-i [ --input ] arg input LAS file
-v [ --verbose ] Verbose message output
--no-vlrs Don't show VLRs
--no-schema Don't show schema
--no-check Don't scan points
--xml Output as XML
-p [ --point ] arg Display a point with a given id. --point 44
Filtering options:
-e [ --extent ] arg Extent window that points must fall within to keep.
Use a comma-separated or quoted, space-separated list,
for example,
-e minx, miny, maxx, maxy
or
-e minx, miny, minz, maxx, maxy, maxz
-e "minx miny minz maxx maxy maxz"
--minx arg Extent must be greater than or equal to minx to be
kept.
--minx 1234.0
--miny arg Extent must be greater than or equal to miny to be
kept.
--miny 5678.0
--minz arg Extent must be greater than or equal to minz to be
kept. If maxx and maxy are set but not minz *and maxz,
all z values are kept.
--minz 0.0
--maxx arg Extent must be less than or equal to maxx to be kept.
--maxx 1234.0
--maxy arg Extent must be less than or equal to maxy to be kept.
--maxy 5678.0
--maxz arg Extent must be less than or equal to maxz to be kept.
If maxx and maxy are set but not maxz *and minz, all z
values are kept.
--maxz 10.0
-t [ --thin ] arg (=0) Simple decimation-style thinning.
Thin the file by removing every t'th point from the
file.
--last_return_only Keep last returns (cannot be used with
--first_return_only)
--first_return_only Keep first returns (cannot be used with
--last_return_only
--keep-returns arg A list of return numbers to keep in the output file:
--keep-returns 1 2 3
--drop-returns arg Return numbers to drop.
For example, --drop-returns 2 3 4 5
--valid_only Keep only valid points
--keep-classes arg A list of classifications to keep:
--keep-classes 2 4 12
--keep-classes 2
--drop-classes arg A comma-separated list of classifications to drop:
--drop-classes 1,7,8
--drop-classes 2
--keep-intensity arg Range in which to keep intensity.
The following expression types are supported:
--keep-intensity 0-100
--keep-intensity <200
--keep-intensity >400
--keep-intensity >=200
--drop-intensity arg Range in which to drop intensity.
The following expression types are supported:
--drop-intensity <200
--drop-intensity >400
--drop-intensity >=200
--keep-time arg Range in which to keep time.
The following expression types are supported:
--keep-time 413665.2336-414092.8462
--keep-time <414094.8462
--keep-time >413665.2336
--keep-time >=413665.2336
--drop-time arg Range in which to drop time.
The following expression types are supported:
--drop-time <413666.2336
--drop-time >413665.2336
--drop-time >=413665.2336
--keep-scan-angle arg Range in which to keep scan angle.
The following expression types are supported:
--keep-scan-angle 0-100
--keep-scan-angle <100
--keep-scan-angle <=100
--drop-scan-angle arg Range in which to drop scan angle.
The following expression types are supported:
--drop-scan-angle <30
--drop-scan-angle >100
--drop-scan-angle >=100
--keep-color arg Range in which to keep colors.
Define colors as two 3-tuples (R,G,B-R,G,B):
--keep-color '0,0,0-125,125,125'
--drop-color arg Range in which to drop colors.
Define colors as two 3-tuples (R,G,B-R,G,B):
--drop-color '255,255,255-65536,65536,65536'
For more information, see the full documentation for lasinfo at:
http://liblas.org/utilities/lasinfo.html
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Example data¶
Visit the libLAS sample library for LiDAR data in LAS format: